Pantograph.



B. ANDERSON.

PANTOGRAPH.

APPLICATION FILED JULY19,19Y12.

1,079,9 1 O. Patented Nov. 25,1913.

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` PANTOGRAPH.

APPLIGATION Hup JULY 19, 1912. l 1 ,079,91 Q Patented Nov. .25, 1913.

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BENJAMIN 'IANDES0N, OF GEBO, WYOMING.

-PANTGG'RAP-H.

Patented Nov. 25,1913.

Apliiicafonlea July 119.1912. serrar'No. 710,447.

To all whom, 2f/may concern.'

Be it known thatI, BENJAMIN ANDnRsoN, a citizen of the United lStates, `residing at Gebo, in the countyof'Bighorn and State` of l'lVyo-ming, have invented new and useful; Improvements in Pantographs, of which the;

following is a specification.

The general object of thisy invention is the provision rof a pantog-raph which is simplev in construction and eifective in use and to; this end the invention consists in providing a standard which is'a-dapted` to be rotatably connected -to a drawing board, said sta-ndard having swinginglyconnected thereto a plurality of levers adapted to'be used for reproducing an original drawing, print o/r vention generally understood, it will be understood, of course, thatthe essential features thereof will be susceptible of changes in details and structural arrangements, one preferred and practical embodiment 'being shown i'n the accompanying drawings, wherein Figure l is a side elevation of the panto-E graph showing the same attached to `a drawing board and in a position whereby the reproduction will be made 'larger than the original. Fig. 2 is a top plan view thereof. Fig. 3 is an end elevation. Fig. 4 is a side elevation of the device showing the same in position whereby the reproduction `will be of the same size as the original. Fig. f5 is'a section on the line L5--5 ofFig. 2. Fig. 6 is a plan view of one olf the slides used in `clonnection with the invention. Fig. "7 is a detail perspective of a bracket carried byfthe standard. l

Referring more particularly to the accompanying drawings in which like reference `characters designate similar parts, 10 ind-1-` cates a drawing 4boa-rd adaptedto havethe device connected thereto by means of a U-shaped clamp 11 when thelpantograph is in the position shown in Fig. l, orin other'l words, when it is desiredlto malre the reproduction larger than the original. The clamp 11 is secured to the drawing beard adjacent one edge thereof by means of a set screw l2 and said clamp is lprovided `in vone limb thereof with a socket l1B which is in alinement with a transverse `opening 14 formed "one end thereof a slide 27, the lslide connected to 'the' lever 522 being preferablymade in the other limb of saidtcla-mp. The opening 14k .and socket 1'3 are adapted to receive the stan dard l5' whereby the 'latter will "be rotatably mounted therein.I The upper'end of the standardl is adapted to have secure-d thereto-a bracket 16 whichis preferably'rnade from a` single length of'suitable 'material and Vbent to providea seatlwhich extends for a majorlportion of the width of' said bracket, the"remaining portion of 'saidseat being bentfto provide a'recess f8.

"Secured inA theseat 17 of thenlrraclret` I16 in any suitable manner 'is a laterallyextending" V'beam 1'9 pivotally mounted' in' the krecess f8, by means of pivot' 2OA is 'a vvertical swingingnrml. :Thearn 21 has-piv- 4otally connected thereto intermediate its ends a lever 22,'said`lever being-provided with aplurality of apertures 23 wherebv the length` of' the same maybe adjusted, itl'be- "arm, The armQl has lalso pivotally connected thereto a` second 'lever 25 which is greater "in `length than ,t'he "lever 2Q- and which isalso'provided with a plurality of `apertures 26 lthus renderinglthe `saure-adjustable in length. Y,Each of the j levers 22 and f25f have pivotally'connected thereto at smaller than the one vconnected tothe lever so that theformer will in no way interfere -`with the adjusting of `the lever "25 should it be desired to `maketheV reproduction only'a trifle larger than the original.

The'slidesf 27 are lidentica-l `in construction 'and each comprisesasinglelength of ysuitable' materialV suchv asv brass, -sarid materi al Abeing 'bent `to provide a substantial-ly U- shaped bea-m engaging portion' 28, said per- 'tionhaving its'fends 4.taperedor reduced'to `provide offsetextensions 29 having' ali-ned openingsBOtherein for thereception of -a tracing or reproducing pencily Blas the case 100 may be. The portion'fQS i'sjprovidedconltiguous to one of the eXtensiors29- thereof 'adapted to be bent into engagement I'with one side ofthe-beam` 1'9 whereby the dis- 105 placement of 4the slide will beyprevented. "'jIhe upper'portionof the-slide has "stamped therefrom Aa pair' of spaced pvot ears '33 `v having alined openings 34 therein for f the `reception-fof 'a :pivotlypin fwhich isi-adapted 110 ing understood that a detachable pivotpin spo to engage the adjacent end of the lever whereby the latter will be pivoted to the slide.

When it is desired to make a reproduction of the same size as the original, the device is placed in the position shown in Fig. t by mounting the standard 15 in a suitable opening 36 formed approximately in the center of the drawing board thus obviating the use of the clamp 11. The lever 25 is then swung to the opposite side of the arm 21 after first removing the slide 27 from engagement with the beam 19, said lever being then adjusted to the same length as the lever 22 or if it is desired to make a reproduction smaller than the original, the lever 25 may be made shorter in length than the lever 22. The slide 27 is disengaged from the beam 19 by first removing the pencil 3l and then bending the lugs 32 from engagementl with said beam after which the pivot pin 85 is removed thus permitting the slide to be detached and again secured to said beam after the latter has been adjusted in its seat so ythat the portions thereof will extend upon each side of the bracket 16.

It will thus be seen from the foregoing description that the tracing pencil may be grasped and moved in any direction and owing to the various connections between the levers 22 and 25, the arm 21 and standard 15, the lever 25 will be caused to move in unison with the lever 22 thus insuring an inverted reproduction of the original drawing, print or the like in any desired style.

Vllhat is claimed is 1. A pantograph comprising a standard adapted to be rotatably connected to a support, a laterally extending beam connected to said standard, a vertically swinging arm pivotally connected to saidst-andard, and a plurality of levers adjustably connected to said swinging arm and slidingly connected to said beam. Y

2.. A pantograph comprising a standard adapted to be rotatably connected to a support, a laterally extending beam connected to said standard, a vertically swinging arm pivotally connected to saidvstandard, a plurality of levers'adjustably connected to said swinging Varm andslidingly connected to said beam, and a slide made of a single lengthof material pivotally connected to one end of eachl of said levers and adapted for engagement with said beam.

V-A pantograph comprising a standard adapted to be rotatably connected to a support, a laterally extending beam connected to said standard, a vertically swinging arm pivotally connected to said standard, a. plurality of levers adjustably connected to said swinging arm and slidingly connected t0 said beam, a slide made of a single length of material pivotally connected to one end of each o-f said levers and adapted for engage! ment with said beam, said slide comprising a beam engaging portion having reduced offset extensions, and pivot ears carried by the beam engaging portion and adapted for connection with the end of the lever.

4l. A pantograph comprising a standard adapted to be rotatably mounted in a support, a vertical swinging arm pivotally connected to said standard, a lever pivotally and adjustably connected to said swinging arm intermediate the ends thereof, a tracing pencil carrying means connected to said lever, a second lever pivotally and adjustably connected to said swinging arm adjacent the outer end thereof, and a reproducing pencil carrying means connected to said second lever.

5. A pantograph comprising a standard adapted to be rotatably mounted in a support, a beam extending laterally from said standard, a vertically swinging arm connected to the standard, a lever pivotally and adjustably connected to the swinging arm intermediate the ends thereof, a tracing pencil carrying means connected to said lever, a second lever pivotally and adjustably connected to said swinging arm adjacent the outer end thereof, and a reproducing pencil carrying means connected to said second lever, the respective pencil carrying means being slidably connected to the beam.

6. A pantograph comprising a rotatable standard, a bracket pivotally connected thereto and bent to provide a seat and a recess, a beam mounted in said seat, a vertically swinging arm pivoted in said recess, tracing pencil carrying means movably mounted on the beam, a connection between said means and the arm, reproducing pencil carrying means movably mounted on the beam, and a connection between said latter means and the arm.

7. A pantograph comprising a beam, a swinging arm tracing pencil carrying means slidably mounted in the beam, an adjustable connection intermediate said means and the arm, reproducing pencil carrying means slidably mounted on the beam and an adjustable connection intermediate said latter means and the arm.

8. A pantograph comprising a beam, a swinging arm, a tracing pencil carrying slide mounted on the beam, a reproducing pencil carrying slide mounted on the beam, and independent levers pivotally connected to said slides respectively and adjustably connected to the arm.

9. A pantograph comprising a standard adapted to be rotatably connected to a support, guiding means connected to said standard, a vertically swinging arm connected to said standard, a tracing pencil carrying slide mounted on the beam, a reproducing pencil carrying slide mounted on the beam and independent levers pivotally connected to said slides respectively and adjustably connected to the arms.

l0. A pantograph comprising a standard adapted to be rotatably connected to a support, guiding means connected to said standard, a swinging arm connected to said standard, a tracing pencil carrying means including a slide and a lever, and a reproducing pencil carrying means including a slide 10 and lever, and the slides of each of said means being removably mounted on the guiding means and the levers of each of said means being adjustably connected to the swingmg means.

In testimony whereof I affix my signature 15 Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

